402685629 has 8 divisors (see below), whose sum is σ = 554234112. Its totient is φ = 259797120.

The previous prime is 402685627. The next prime is 402685637. The reversal of 402685629 is 926586204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 402685629 - 2¹ = 402685627 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402685627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164884 + ... + 2165069.

It is an arithmetic number, because the mean of its divisors is an integer number (69279264).

Almost surely, 2^402685629 is an apocalyptic number.

It is an amenable number.

402685629 is a deficient number, since it is larger than the sum of its proper divisors (151548483).

402685629 is a wasteful number, since it uses less digits than its factorization.

402685629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329987.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 402685629 is about 20067.0284048237. The cubic root of 402685629 is about 738.4516132572.

The spelling of 402685629 in words is "four hundred two million, six hundred eighty-five thousand, six hundred twenty-nine".